This is a set of two Yumiko Iihoshi porcelain mugs. I believe they were a collaboration with Journal Standard. One of them has a spot on the bottom where the glaze seems to be missing. I think it was probably like that from the beginning. [Image 8] Please confirm the condition carefully before purchasing. I have thrown away the box. I've used them about 10 times. Please understand that these are used items before purchasing. Thank you for looking.